Long-term cottonseed storage facilities must be equipped with an aeration system. A properly designed aeration system must have: 1) aeration ducts to distribute air through the cottonseed, 2) properly sized supply pipes to transport the air, and 3) fans to supply the required volume of air for a given static pressure or resistance. Factors that influence the design and selection of aeration equipment are: 1) the size and shape of storage facility, 2) airflow rate per ton of cottonseed, and 3) the maximum depth of stored cottonseed.
A safe airflow rate for cottonseed in flat storage is 10 cubic feet per minute per ton (cfm/ton). In areas with cooler and dryer climatic conditions, lower capacity aeration systems (5 cfm/ton) can be used.